Do not take this product if you have asthma, glaucoma, emhysema, chronic pulmonary disease, shortness of breath, difficulty in breathing or difficulty in urination due to enlargement of the prostate gland unless directed by a doctor. Persons with high fever or persistent cough should not use this preparation unless directed by a doctor. May cause excitability especially in children. May cause marked drowsiness: alcohol may increase the drowsiness effect. Avoid alcoholic beverages while taking this product. Use caution when driving a motor vehicle or operating machinery. As with any drug if you are pregnant or nursing a baby seek the advice of a doctor before using this product. This product should not be used during the last three months of pregnancy unless directed by a doctor. New warning: children and teenagers should not use this medicine for chicken pox or flu symptoms before a doctor is consulted about reye syndrome, a rare but serious illness. Caution: do not use for more than 3 days except as directed by a doctor. This preparation may cause drowsiness. Do not drive or operate machinery while taking this medication. Do not exceed recommended dosage. Individuals with high blood pressure, heart disease, diabetes or thyroid disease should use only as directed by a doctor. The enclosed bottle has been sealed; if the seal around the cap is broken or missing do not use. Keep this and all drugs out of the reach of children. In case of accidental overdose, seek professional assistance or contact a poison control center immediately.